Friday focal mechanisms
Category: geology
A brief summary of the week's large earthquakes and their tectonic context.
Posted by Chris Rowan at 5:35 PM • 9 Comments •
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Chris Rowan is a geologist specialising in the dark arts of paleomagnetism, and getting people to pay him to travel to exotic destinations for fieldwork. Having drilled up New Zealand during his PhD, and South Africa in his first post-doc, he now works at the University of Edinburgh.
Anne Jefferson has a love of all things water-related and blends hydrology, geomorphology, geology, and climate change in her work. She has a Ph.D. from Oregon State University and is now an assistant professor at the University of North Carolina at Charlotte.
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earthquakes:
Creeping fault segments are showing their age
Category: geology
Do faults get weaker as they get older?
Posted by Chris Rowan at 12:05 PM • •
Old tectonic scars run deep: the magnitude 5.0 earthquake in Ontario
Category: geohazards
The location of yesterday's earthquake in Canada was controlled by tectonic processes that operated, and ceased, hundreds of millions of years ago.
Posted by Chris Rowan at 6:00 PM • 12 Comments •
The seismic non-pocalypse
Category: geohazards
Why seismically, 2010 is not as out of the ordinary as some people think - and why the question is actually the wrong one to be asking anyway.
Posted by Chris Rowan at 6:30 PM • 11 Comments •
Tectonics of the Qinghai Earthquake
Category: geology
Late on Tuesday (or Wednesday morning local time) western China was shaken by a magnitude 6.9 earthquake. The focal mechanism, courtesy of the USGS, tells us that it occured on a strike-slip fault like the San Andreas fault and...
Posted by Chris Rowan at 1:38 PM • 2 Comments •
Toads: seismic prognosticators?
Category: geohazards
Is a pet toad the new must-have earthquake detector?
Posted by Chris Rowan at 12:40 PM • 9 Comments •
Haiti: what next for the Enriquillo Fault?
Category: geohazards
On sections of the fault adjacent to January's rupture, strain built up by plate motions is still there, waiting to be released. The only question is when, and how.
Posted by Chris Rowan at 6:00 PM • 7 Comments •
Haiti's seismic future
Category: geohazards
Is Haiti safe yet? Will there be another devastating earthquake in the future - and if so, when?
Posted by Chris Rowan at 2:50 PM • 6 Comments •
Tectonics of the Haitian earthquake
Category: geohazards
Haiti is parked right on top of a plate boundary, but too poor to really prepare for the inevitable large earthquake.
Posted by Chris Rowan at 1:30 AM • 85 Comments •
5 focal mechanisms
Category: geology
On the 5th day of Christmas my true love gave to me...
Posted by Chris Rowan at 11:00 AM • 3 Comments •
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